Heat 1995 olds 98, 70K miles....i get plenty of heat during city driving, but while on the highway for a hour or two all I get is cool air, Checked fluids hot & cold always at the mark........any suggestions. the car has dual controls Thanks Mike Kraska Dayton, ohio

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For a 1995 Toyota Camry 4 cyl, 2.2 L, Automatic 4-spd, that runs on regular gasoline, the miles per gallon in the city is 19 MPG. On the highway, it's 26 MPG, and combined 21 MPG for both city and highway driving. The average cost of gasoline per year for this vehicle would be $2700.00.---------------------------------------------------------------------------------------VAS 5054A

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I doubt its the water pump if it only overheats on the highway. City driving is the most heat producing in most cars. I would look for an airflow problem to the radiator. Do you have anything mounted on the front of the car that could disturb airflow such as an air-dam, bug shield or "bra" that isn't original equipment? Have you checked the fan mounted to the radiator to make sure it's working and spinning the right way towards the rear of the engine bay

Usually when water pumps go bad there is leakage from the bearing weep hole, though I have seen pumps with the impeller worn away by stop-leak type additives. It doesn't hurt to check but getting to the pump on many cars is a challenge.